20681631

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{173}}^1\times {\mathrm{359}}^1$

素因数の和:575

約数の個数: 24

約数和(自身を含む): 30944160

約数和(自身を除く): 10262529

約数列:

[1, 3, 9, 37, 111, 173, 333, 359, 519, 1077, 1557, 3231, 6401, 13283, 19203, 39849, 57609, 62107, 119547, 186321, 558963, 2297959, 6893877, 20681631]

約数ペア:

[(1, 20681631), (3, 6893877), (9, 2297959), (37, 558963), (111, 186321), (173, 119547), (333, 62107), (359, 57609), (519, 39849), (1077, 19203), (1557, 13283), (3231, 6401)]